An avocet has a long, strongly upcurved bill which contains a complex and highly specialized system of lamellae capable of filtering out small food items.

我找了一下网路的资料，似乎也没有讨论他原因的文献，可有很久以前的，太好找了。

But Colonel-General Kurt Zeitzler insisted that the offensive go ahead and he became the main avocet of the offensive.

但是主战的库尔特·蔡兹勒将坚持对库尔斯克发动进攻。